You are in luck with the 1861 census. Thomas Keeny was 6 months old and living at Park Street Congleton with parents Thomas and Mary in 1861. siblings Anne 4 and Mary 2 both born Congleton Father a labourer (Brick)was born Ireland Connaught(not far from Dublin?) and mother Dublin. Living with them was Mary Hannigan Mother in law widow 50 born Dublin so presumably Mary's parents were Patrick and Mary. By 1871 they were at 3 Queen Street with name spelt Kenney in th census entry Thomas 40 Mary 30 Anne 15 Mary 13 Thomas 12 John 8 James 3, all children born Congleton.